07-10-2014, 09:29 PM
Depends on the game. I've had a look at a few Dreamcast games myself, and each one seems to use a different format. The only one I've looked at that I can actually rip straight through the files from is Space Channel 5. Everything else I've looked at (Skies of Arcadia, Jet Set/Grind Radio, Rayman 2, Crazy Taxi), I can't find anything on their formats. (Or, in the case of SoA, the program I use to rip/extract most models says it's compatible with those models, but it cannot open a single one)